A hydrostatic-depth scan varies depth across three rows, showing how the pressure P = rho * g * h climbs linearly with depth in a static fluid. The arithmetic is exact only for the stated depths, densities, and rows in the ideal hydrostatic model. Real fluids add viscosity, turbulence, compressibility, geometry tolerance, calibration, and measurement uncertainty.
Depth changes pressure while density and gravity stay fixed. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
Two metres gives forty pascals
Density 2 and training gravity 10 stay fixed; depth 2 metres gives pressure 40 pascals.
ΔP=2×10×2=40
Double depth doubles the pressure
Density 2 and training gravity 10 stay fixed; depth 4 metres gives pressure 80 pascals.
ΔP=2×10×4=80
Five metres closes at one hundred pascals
Density 2 and training gravity 10 stay fixed; depth 5 metres gives pressure 100 pascals.